Product Name: Shoulder Blade Release Pillow *This product is not a medical device. Product Description: Loosen your shoulder blades and relieve stiff shoulders! Supervised by a chiropractor specializing in shoulder blades. Replicates the techniques of a chiropractor, swaying and applying pressure to your back where you can't reach. Features 18 protrusions to apply pressure to the shoulder blades and surrounding muscles, and a specially designed curved shape to support the back. Swaying from side to side, it powerfully loosens areas you can't reach by applying your weight. The underside allows you to gently open your chest and assume a posture that straightens your back, perfect for relaxation. Material: Polyurethane Weight: 1120g I purchased this on this site, but I accidentally bought two, so I am selling one. The above description is from the previous seller.